We gratefully acknowledge the contributions of both Doug Dyer and
Shalom Flank to this work. Doug Dyer provided the original idea of an
interactive template-based travel planner based on a spreadsheet
paradigm. Shalom Flank worked closely with us on the original design
of this system and provided detailed feedback and ideas throughout the
implementation process.

The research reported here was supported in part by the Defense
Advanced Research Projects Agency (DARPA) and Air Force Research
Laboratory, Air Force Materiel Command, USAF, under agreement number
F30602-00-1-0504, in part by the Rome Laboratory of the Air Force
Systems Command and DARPA under contract number F30602-98-2-0109, in part by the United
States Air Force under contract number F49620-98-1-0046, and in part
by the Integrated Media Systems Center, a National Science Foundation
Engineering Research Center, Cooperative Agreement No. EEC-9529152.
The views and conclusions contained herein are those of the authors
and should not be interpreted as necessarily representing the official
policies or endorsements, either expressed or implied, of any of the
above organizations or any person connected with them.